Despite these bounds, Fig. REF  clearly illustrates that wash-in leptogenesis after axion inflation is a viable option across large regions of parameter space, even if we estimate the magnetic Reynolds number in a slightly less optimistic way.
Wash-in leptogenesis can especially rescue the successful generation of the BAU in parameter regions where baryogenesis via helicity decay is spoiled by magnetic diffusion.
In this sense, wash-in leptogenesis manages to restore parameter regions that were already deemed unviable in earlier work that exclusively focused on baryogenesis via helicity decay and did not consider the existence of RHNs [1]}.
